Battery Backup Unit - NEC NF2300-SR412E User Manual

3.3

Battery Backup Unit

(1) Battery switch
If the battery switch is set to ON, the battery backup power is supplied to the cache
memory at the occurrence of power interruption. Turn on this switch before the disk
array unit is used.
The battery switch may not be turned off if the power of the disk array unit is turned
off.
(2) Check terminal
The check terminal is provided for maintenance inspection of the battery backup
unit.
* This terminal is exclusively used for maintenance.
(3) Handle
Hold the handle to pull out the battery backup unit when it is replaced due to failure
or its life.
(3) Handle
If the battery switch is set to OFF, the battery backup for cache is not
provided at the occurrence of power interruption.
Turning off the battery backup unit disables write cache feature.
When inserting the battery backup unit into the array controller, push it
as far as it will go and then secure it with the screws.
Incorrect insertion may cause a battery backup unit failure again.
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(1) Battery switch
(2) Check terminal